WOOTON AND STANDLEY—FLORA OF NEW MEXICO, 151 
KEY TO THE SPECIES. 
Lip of the corolla evidently saccate, the margins recurved; plants 
low, 10 to 14 cm. high; leaves 20 to 25 mm. long............. 1. P. ophioides. 
Lip scarcely saccate, the margins incurved; plants taller, 15 to 30 
cm. high; leaves 40 to 60 mm. long...........-.----------- 2. P. decipiens. 
1. Peramium ophioides (Fernald) Rydb. in Britton, Man. 302. 1901. 
Goodyera ophioides Fernald, Rhodora 1: 6. 1899. 
Type Locatiry: Not definitely stated. 
RanGe: British America to New Mexico, South Dakota, and North Carolina. 
New Mexico: Winsor Creek; Upper Pecos. Damp woods, in the Canadian Zone. 
2. Peramium decipiens (Hook.) Piper, Contr. U. 8. Nat. Herb. 11: 208. 1906. 
Spiranthes decipiens Hook. Fl. Bor. Amer. 2: 203. 1839. 
Goodyera menziesii Lindl. Gen. Sp. Orchid. 492. 1840. 
Peramium menziesii Morong, Mem. Torrey Club 5: 124. 1894. 
Type Locatity: Lake Huron. 
Rance: British America to New York, New Mexico, and California. 
New Mexico: Winsor Creek; Harveys Upper Ranch; Sandia Mountains; Tunitcha 
Mountains. Damp woods, in the Canadian Zone. 
The two species grow together, and one is likely to be overlooked because of its 
similarity in general appearance to the other. 
5. ACHROANTHES Raji. ADDER’S MOUTH. 
Low herbs from solid bulbs, with 1 or 2 leaves and 1 to several scales at the base of 
the stem; flowers small, green or purplish, in a terminal raceme or spike; sepals 
spreading, separate; petals filiform or linear, spreading; lip cordate or auriculate at 
the base. 
KEY TO THE SPECIES. 
Flowers greenish, in a very dense spike; divisions of the perianth 
oblong or oblong-lanceolate to ovate .......-....---..------- 1. A. montana. 
Flowers purplish, in a loosely flowered spike; divisions of the peri- 
anth linear or linear-lanceolate. ............--.------------ 2. A. porphyrea. 
1. Achroanthes montana (Rothr.) Greene, Pittonia 2: 183. 1891. 
Microstylis montana Rothr. in Wheeler, Rep. U.S. Surv. 100th Merid. 6: 264. 1878. 
Type LocaLiry: Mount Graham, Arizona, at an elevation of 2,800 meters. 
Rance: In the mountains of Arizona and New Mexico. 
New Mexico: Gallinas Planting Station (Bartlett 324). Deep woods, in the Cana- 
dian Zone. 
This is a considerable extension of range for the species. Heretofore it has been 
known in the United States only from Arizona. Specimens in the National Herbarium 
are from Mount Graham and the Rincon and Huachuca Mountains of that State. 
2. Achroanthes porphyrea (Ridley) Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 
116. 1913. 
Microstylis purpurea 8. Wats. Proc. Amer. Acad. 18: 195. 1883, not Lind]. 1840. 
Microstylis porphyrea Ridley, Journ. Linn. Soc. Bot. 24: 320. 1888. 
Achroanthes purpurea Greene, Pittonia 2: 184. 1891. 
Type Locality: In Tanners Canyon, Huachuca Mountains, southern Arizona. 
Rance: Mountains of southern Arizona and New Mexico. 
New Mexico: Cloudcroft ( Wooton). 
